Download PDF by Jorge Vitório Pereira, Luc Pirio: An Invitation to Web Geometry

By Jorge Vitório Pereira, Luc Pirio

This e-book takes an in-depth examine abelian kin of codimension one webs within the advanced analytic surroundings. In its classical shape, internet geometry is composed within the research of webs as much as neighborhood diffeomorphisms. an important a part of the speculation revolves round the inspiration of abelian relation, a selected form of practical relation one of the first integrals of the foliations of an online. major focuses of the booklet comprise what number abelian family can an internet hold and which webs are wearing the maximal attainable variety of abelian kin. The booklet bargains entire proofs of either Chern’s certain and Trépreau’s algebraization theorem, together with all of the valuable must haves that transcend trouble-free complicated research or easy algebraic geometry. lots of the examples recognized modern of non-algebraizable planar webs of maximal rank are mentioned intimately. A ancient account of the algebraization challenge for maximal rank webs of codimension one can be presented.

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But there are still other functions.

Beware that the terminology here adopted does not always coincide with the one used in [26]. Cn ; 0/ and W P ! 3 On P there is a canonical codimension one distribution, the so-called contact distribution D. 2) iD1 The usual way to define D in more intrinsic terms goes as follows. Recall that the tautological line-bundle OP . x; Œy/ 2 P by the direction parametrized by it. Cn ; 0/. 1/ is nothing else than the contact distribution D. 2). This 1-form is the so-called contact form of P. Webs as Closures of Meromorphic Multi-sections Let now W P be a subvariety not necessarily irreducible but of pure dimension n.

Tanh x tanh y/. But there are still other functions.

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